Kaiser Permanente, one of the largest not-for-profit health providers in the United States, planned a net-zero energy use facility to bring specialty medical services to patients in California’s remote Antelope Valley. The design featured a large, custom curtain wall to streamline air flow and a turbine to generate energy in this desert region where wind gusts can reach 90 mph and temperature fluctuates greatly from day to night. Kaiser’s architecture team chose GE Elemax* air and water barrier (AWB) to stand up to these daily environmental stressors, and help achieve energy efficiency to meet a goal of LEED (Platinum) Certification.